If you are planning to migrate a current .Net application to the latest version (VS 2010), be sure to read the free ebook titled "Moving to Microsoft Visual Studio 2010".
This book is divided in 3 main parts depending on which version you are starting from:
Be sure to download it right now and start reading it!
Get it from : http://blogs.msdn.com/b/microsoft_press/archive/2010/09/13/free-ebook-moving-to-microsoft-visual-studio-2010.aspx